December Weather in Montpelier, United States

Last updated: June 24, 2025

In December, the average temperature in Montpelier, United States hovers around -6°C (21°F). Expect chilly extremes, with minimums plummeting to -21°C (-5°F) and a maximum of 10°C (50°F). During this month, you'll encounter approximately 57 mm (2.2 in) of precipitation spread over 11 days. With average humidity at a brisk 91%, be prepared for a cold and damp atmosphere!

December Temperature in Montpelier

In December in Montpelier, the average temperature is -6°C (21°F), with maximums reaching up to 10°C (50°F) and minimums dropping as low as -21°C (-5°F). Travelers should prepare for cold weather and dress warmly if planning to visit during this time.

December Weather in Montpelier: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Montpelier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montpelier, December typically has an average temperature of -6°C (21°F), with highs reaching up to 10°C (50°F) and lows dropping to around -21°C (-5°F).

Data source: Temperature data for Montpelier generated using information from the Copernicus Climate Change Service.

December Precipitation in Montpelier

In Montpelier in December, the precipitation amount is 57 mm (2.2 in) spread over 11 days.

December Precipitation Trends in Montpelier

The chart displays monthly precipitation patterns in Montpelier, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Montpelier, December typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Montpelier

In Montpelier in December humidity is 91%. With an average temperature of -6°C (21°F), this humidity feels like wandering through a cold, damp fog that clings to your skin, making it challenging to stay warm and comfortable while exploring the surroundings.

December Average Humidity in Montpelier

This chart illustrates the average monthly humidity levels in Montpelier, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Montpelier is approximately 91%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Montpelier

In Montpelier in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Montpelier, you can check the information here.

Maximum UV Index Levels in Montpelier for December

The chart shows the monthly maximum UV Index (UVI) for Montpelier in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Montpelier typically reaches 3, which falls under the moderate exposure category.

Data source: Montpelier December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Montpelier Compares to Other Months

Weather in Montpelier varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Montpelier, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Montpelier, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	63 mm (2.5 inches)	95%	moderate
February Weather	-5°C (23°F)	90 mm (3.5 inches)	95%	moderate
March Weather	0°C (32°F)	57 mm (2.2 inches)	90%	very high
April Weather	2°C (36°F)	67 mm (2.7 inches)	81%	very high
May Weather	7°C (46°F)	69 mm (2.7 inches)	71%	extreme
June Weather	15°C (59°F)	37 mm (1.5 inches)	64%	extreme
July Weather	20°C (68°F)	20 mm (0.8 inches)	59%	extreme
August Weather	19°C (66°F)	30 mm (1.2 inches)	49%	extreme
September Weather	13°C (56°F)	44 mm (1.7 inches)	52%	very high
October Weather	4°C (40°F)	51 mm (2.0 inches)	69%	high
November Weather	-2°C (29°F)	58 mm (2.3 inches)	86%	moderate
December Weather	-6°C (21°F)	57 mm (2.2 inches)	91%	moderate